Trying Litespeed, but having a few problems

I'm trying Litespeed out on the standard edition before purchasing the Enterprise one for a quad core machine. This is to serve as a replacement to Apache in a cPanel/WHM environment.

I've installed it perfectly fine, and built PHP 5.2.6 using the LiteSpeed admin console. However, most of my PHP software now just displays a blank page. I went to turn on errors and to add extra modules to php.ini, only I can't seem to find the php.ini file.

I tried to switch to Apache using the plugin to try something out, except Apache failed to start and I couldn't free up port 80 again without rebooting the machine.

Edit: After an earlier build of version 5 that had working MySQL (but nothing much else), MediaWiki displayed the following error in place of a blank page, although it might be okay if I can get PHP built properly as it was in cPanel:

If it still not working, you have to use "Compile PHP" from web console, make sure to set "Install Path Prefix" to "/usr/local", "configuration parameters" should be the same as that from Apache phpinfo() output, minus apache specific options.

The only problem that seems to be left is the issue of blank pages on certain PHP scripts such as MediaWiki when accessed through Litespeed. I found another post when searching for similiar issues and they solved it through a reinstall, but since I've done that several times already...